BUSCH LM 0100 A User manual

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DOLPHIN LM/LT
Liquid Ring Vacuum Pumps
LM 0100 A, LM 0180 A, LM 0270 A, LM 0530 A, LM 0800 A,
LT 0130 A, LT 0170 A, LT 0220 A, LT 0320 A, LT 0430 A, LT 0510 A, LT 0630 A, LT 0750 A
Instruction Manual
0870206545 | -0003_en-US | Original instructions 8/18/2022

Table of Contents
2 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
Table of Contents
1 Safety..................................................................................................................................................................... 3
2 Product Description............................................................................................................................................. 4
2.1 Operating Principle ............................................................................................................................................. 5
2.2 Intended Use ....................................................................................................................................................... 5
2.3 Start Controls....................................................................................................................................................... 6
2.4 Variants................................................................................................................................................................. 6
2.4.1 LM Series................................................................................................................................................ 6
2.4.2 LT Series ................................................................................................................................................. 6
2.4.3 VL System............................................................................................................................................... 6
3 Transport .............................................................................................................................................................. 7
4 Storage .................................................................................................................................................................. 8
4.1 Short Term (Up to 3 Months) ............................................................................................................................. 8
4.2 Medium Term (3 Months to 6 Months)............................................................................................................. 8
4.3 Long Term (Over 6 Months)............................................................................................................................... 8
5 Installation ........................................................................................................................................................... 9
5.1 Installation Conditions........................................................................................................................................ 9
5.2 Connecting Lines / Pipes .................................................................................................................................... 10
5.2.1 Suction Connection............................................................................................................................... 10
5.2.2 Discharge Connection .......................................................................................................................... 10
5.2.3 Operating Liquid Connection .............................................................................................................. 11
5.3 Operating Liquid Settings .................................................................................................................................. 13
5.4 Fitting the Coupling ............................................................................................................................................ 14
5.5 Bolt Setting........................................................................................................................................................... 15
6 Electrical Connection........................................................................................................................................... 16
6.1 Machine delivered without Control Box or Variable Speed Drive (VSD)....................................................... 16
6.2 Machine delivered with a Variable Speed Drive (Option)............................................................................... 17
6.3 Wiring Diagram Three-Phase Motor................................................................................................................. 18
7 Commissioning..................................................................................................................................................... 20
7.1 Preventing Cavitation ......................................................................................................................................... 21
8 Maintenance......................................................................................................................................................... 22
8.1 Maintenance Schedule ....................................................................................................................................... 23
9 Overhaul................................................................................................................................................................ 24
10 Decommissioning................................................................................................................................................. 25
10.1 Dismantling and Disposal .................................................................................................................................. 25
11 Spare Parts............................................................................................................................................................ 26
12 Troubleshooting................................................................................................................................................... 28
13 Technical Data...................................................................................................................................................... 30
14 EU Declaration of Conformity............................................................................................................................. 35
15 UK Declaration of Conformity ............................................................................................................................ 36

Safety | 1
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 3 | 40
1 Safety
Prior to handling the machine, this instruction manual should be read and understood. If anything
needs to be clarified, please contact your Busch representative.
Read this manual carefully before use and keep for future reference.
This instruction manual remains valid as long as the customer does not change anything on the
product.
The machine is intended for industrial use. It must be handled only by technically trained personnel.
Always wear appropriate personal protective equipment in accordance with the local regulations.
The machine has been designed and manufactured according to state-of-the-art methods. Never-
theless, residual risks may remain, as described in the following chapters and in accordance with the
chapter Intended Use [➔5]. This instruction manual highlights potential hazards where appropri-
ate. Safety notes and warning messages are tagged with one of the keywords DANGER, WARNING,
CAUTION, NOTICE and NOTE as follows:
DANGER
... indicates an imminent dangerous situation that will result in death or serious injuries if not
prevented.
WARNING
... indicates a potentially dangerous situation that could result in death or serious injuries.
CAUTION
... indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
... indicates a potentially dangerous situation that could result in damage to property.
NOTE
... indicates helpful tips and recommendations, as well as information for efficient and trou-
ble-free operation.

2 | Product Description
4 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
2 Product Description
OUTIN
OPD
GRP*
GVC
DOLPHIN LM 0100-0800 A
DOLPHIN LT 0130-0750 A
GRP
IN OUT
OPI2**
OPI1OPL
OPD
GVC
OPI1
OPL
NP
NP
CPC
GRP*
Description
CPC Cavitation protection connection IN Suction connection
GRP* Grease point GVC Vacuum gauge or relief valve connection
NP Nameplate OPD Operating liquid drain
OPI Operating liquid inlet OPL Operating liquid level plug
OUT Discharge connection
* GRP available on LM 0800 A, LT 0630 A and LT 0750 A only
** OPI2 required for LM 0270 A, LM 0530 A and LM 0800 A only
NOTE
Technical term.
In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’.

Product Description | 2
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 5 | 40
NOTE
Illustrations
In this instruction manual the illustrations may differ from the machine appearance.
2.1 Operating Principle
The machine works on the liquid ring principle.
An eccentrically mounted impeller rotates in a housing partially filled with operating liquid (usually
water). The impeller blades dip into the fluid, and the centrifugal force exerted by their rotation
forms a so-called liquid ring within the housing. The pumped medium is transported in the spaces
between the blades and the liquid ring. The eccentric rotation of the impeller alters the volume of
these spaces, causing gas to be drawn in, compressed and expelled.
2.2 Intended Use
WARNING
In case of foreseeable misuse outside the intended use of the machine.
Risk of injuries!
Risk of damages to the machine!
Risk of damages to the environment!
●Make sure to follow all instructions described in this manual.
The machine is intended for the suction of air, vapor and other gases.
For explosive gases and vapors (if a "Ex(inside)" sign is written on the nameplate), please refer to the
ATEX supplement for additional safety information on operation in hazardous zones.
Conveying of other media leads to an increased thermal and/or mechanical load on the machine
and is permissible only after a consultation with Busch.
The machine is intended for the placement in a non-potentially explosive environment unless a
"Ex(outside)" sign is written on the nameplate, in this case please refer to the ATEX supplement for
additional safety information.
The machine is capable of maintaining ultimate pressure, see Technical Data [➔30].

2 | Product Description
6 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
The machine is suitable for continuous operation.
Permitted environmental conditions, see Technical Data [➔30].
2.3 Start Controls
The machine comes without start controls. The control of the machine is to be provided in the
course of installation.
2.4 Variants
2.4.1 LM Series
DOLPHIN LMs are single-stage vacuum pumps and operate from atmospheric pressure to 130 hPa
(mbar) ultimate pressure.
2.4.2 LT Series
DOLPHIN LTs are two-stage vacuum pumps and operate from atmospheric pressure to 33 hPa
(mbar) ultimate pressure.
2.4.3 VL System
VL System consists of a DOLPHIN machine either LM or LT and an operating liquid supply system.
Three different layouts are possible:
– Once through cooling / no recovery.
– Partial recovery (open circuit).
– Total recovery (closed circuit).
All of these arrangements have four basic elements:
– Source of the operating liquid (from the water main or reservoir).
– Regulating device to control flow of liquid.
– Means of stopping the flow when the machine is shut off (manual or with solenoid valve).
– Means of separating the gas-liquid exhaust mixture to prevent the build-up of unnecessary back-
pressure.
If the machine is equipped with a VL System (see reference on the nameplate):
●Consult the supplement to the instruction manual of the VL System for additional information.

Transport | 3
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 7 | 40
3 Transport
WARNING
Suspended load.
Risk of severe injury!
●Do not walk, stand or work under suspended loads.
●To find out the weight of the machine, refer to the chapter Technical Data [➔30] or the name-
plate (NP).
●Use appropriate slings.
1 2
Description
1 DOLPHIN LM or LT without motor (bare
shaft pump)
2 DOLPHIN LM or LT with motor
●Check the machine for transport damage.
If the machine is secured to a base plate:
●Remove the machine from the base plate.

4 | Storage
8 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
4 Storage
NOTICE
Storage temperature below +5°C.
Risk of damage to the machine!
●Drain the operating liquid from the machine and the system before storage.
●Or add an anti-freeze solution.
After testing, all Busch DOLPHIN vacuum pumps are vented and drained. Pumps containing ferrous
materials are preserved using a combined VPI (Vapor Phase Inhibitor) and Contact Inhibitor Oil (Va-
porol™ or equivalent) at a recommended concentration of 1 liter per m3.
4.1 Short Term (Up to 3 Months)
●Seal all apertures with adhesive tape or provided caps.
If possible:
●Store the machine indoors, dry, dust free and if possible in original packaging preferably at tem-
peratures between +5 … 55 °C.
4.2 Medium Term (3 Months to 6 Months)
●Remove the shaft coupling guard (if not supplied as a bare shaft machine).
●Rotate the machine shaft by hand weekly to prevent bearing indentation.
●Leave the shaft at approximately 90 degrees to the original position, using a temporary mark on
the shaft to assist.
●Replace the coupling guard, taking care to align correctly and ensure that all fasteners are re-
placed and fully tightened.
4.3 Long Term (Over 6 Months)
If the machine is constructed in cast iron material:
●Fill the pump with a liquid preservative (e.g. ‘Shell Ensis Fluid’) to prevent the machine from cor-
roding.
●Remove the shaft coupling guard (if not supplied as a bare shaft machine).
●Rotate the machine shaft by hand weekly to prevent bearing indentation.
●Leave the shaft at approximately 90 degrees to the original position, using a temporary mark on
the shaft to assist.
●Coat the exposed shaft ends and shaft coupling with wax preservative or heavy grease.
●Replace the coupling guard, taking care to align correctly and ensure that all fasteners are re-
placed and fully tightened.

Installation | 5
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 9 | 40
5 Installation
5.1 Installation Conditions
NOTICE
Use of the machine outside of the permitted installation conditions.
Risk of premature failure!
Loss of efficiency!
●Take care that the installation conditions are fully complied with.
●Make sure that the environment of the machine is not potentially explosive.
If there is Ex(o) sign written on the nameplate:
●Please refer to the ATEX supplement for additional safety information.
●Make sure that the ambient conditions comply with the Technical Data [➔30].
●Make sure that the environmental conditions comply with the protection class of the motor and
the electrical elements.
●Make sure that the installation space or location is protected from weather and lightning.
●Make sure that the installation space or location is vented such that sufficient cooling of the ma-
chine is provided.
●Make sure that cooling air inlets and outlets of the motor fan are not covered or obstructed and
that the cooling air flow is not affected adversely in any other way.
●Make sure that enough space remains for maintenance work.
●Make sure that the machine is placed or mounted horizontally on a flat surface.
●Make sure that the machine is connected to an operating liquid system, see Operating Liquid Con-
nection [➔11].
●Make sure that all provided covers, guards, hoods, etc. are mounted.
In case of a machine delivery without motor:
●Make sure that the coupling is correctly aligned, see Fitting the Coupling [➔14].
If the machine is installed at an altitude greater than 1000 meters above sea level:
●Contact your Busch representative, the motor should be derated or the ambient temperature
limited.

5 | Installation
10 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
5.2 Connecting Lines / Pipes
●Remove all protective covers before installation.
●Make sure that the connection lines cause no stress on the machine‘s connection; if necessary use
flexible joints.
●Make sure that the line size of the connection lines over the entire length is at least as large as
the connections of the machine.
In case of long connection lines it is advisable to use larger line sizes in order to avoid a loss of effi-
ciency. Seek advice from your Busch representative.
5.2.1 Suction Connection
NOTICE
Ingress of foreign objects.
Risk of damage to the machine!
If the inlet gas contains foreign solid particles:
●Install a suitable inlet screen (smaller than 0.1 mm mesh size) upstream of the machine.
Connection size(s):
– DN40 PN10 (for LM 0100-0270 A and LT 0130-0220 A)
– DN50 PN10 (for LM 0530 A and LT 0320-0510 A)
– DN65 PN10 (for LM 0800 A and LT 0630-0750 A)
5.2.2 Discharge Connection
NOTICE
Discharge gas flow obstructed.
Risk of damage to the machine!
●Make sure that the discharged gas will flow without obstruction. Do not shut off or throttle the
discharge line or use it as a pressurized air source.
NOTICE
Too high elevation or lack of separation.
Will cause back pressure and possible drive motor overload!
●The discharge piping should not exceed an elevation of more than 600 mm above the discharge
flange (OUT) of the machine until the liquid is separated.
Connection size(s):
– DN40 PN10 (for LM 0100-0270 A and LT 0130-0220 A)
– DN50 PN10 (for LM 0530 A and LT 0320-0510 A)
– DN65 PN10 (for LM 0800 A and LT 0630-0750 A)

Installation | 5
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 11 | 40
5.2.3 Operating Liquid Connection
The machine cannot be operated without an operating liquid system. The following diagrams show
examples of typical installations. The actual scope of delivery is always contractually agreed upon.
If the machine is equipped with a VL System (see reference on the nameplate):
●Consult the supplement to the instruction manual of the VL System for additional information.
OPI2**GVC
DOLPHIN LM 0100-0800 A
DOLPHIN LT 0130-0750 A
OPI1
OPD GVCOPIOPL CPC
OPL OPD
Description
CPC Cavitation protection connection GVC Vacuum gauge or relief valve connec-
tion
OPD Operating liquid drain OPI Operating liquid inlet
OPL Operating liquid level plug
** OPI2 required for LM 0270 A, LM 0530 A and LM 0800 A only
Connection size:
Machine type OPI1 OPI2 OPD OPL CPC GVC
LM 0100-0180 A Rc 1/2 N/A Rc 1/8 Rc 1/4 N/A Rc 1/4
LM 0270 A Rc 1/2 Rc 1/2 Rc 1/8 Rc 1/4 N/A Rc 1/4
LM 0530 A Rc 1 Rc 1 Rc 1/4 Rc 3/4 N/A Rc 3/4
LM 0800 A Rc 1 Rc 1 Rc 1/2 Rc 3/4 N/A Rc 3/4
LT 0130-0220 A Rc 1/2 N/A 2 x Rc 1/8 Rc 1/4 Rc 1/8 Rc 1/4
LT 0320-0510 A Rc 1 N/A 2 x Rc 1/4 Rc 3/4 Rc 1/4 Rc 3/4
LT 0630-0750 A Rc 1 N/A 2 x Rc 1/2 Rc 3/4 Rc 1/4 Rc 3/4
●Make sure that the operating liquid complies with the requirements, see Operating Liquid Settings
[➔13].

5 | Installation
12 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
5.2.3.1 Once-Through Operation / No recovery
12
3
Description
1 Process inlet (IN) 2 Gas discharge (OUT)
3 Operating liquid inlet (OPI)
Continuous flow liquid system does not recover the operating liquid which flows out with the dis-
charge gases.
5.2.3.2 Partial Recovery (Open Circuit)
1
2
4
3
Description
1 Process inlet (IN) 2 Gas discharge (OUT)
3 Operating liquid inlet (OPI) 4 50% of operating liquid liquid recov-
ered
Partial recirculation liquid system reduces the consumption of fresh liquid by recovering and recircu-
lating 50% of the operating liquid.

Installation | 5
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 13 | 40
5.2.3.3 Total Recovery (Closed Circuit)
1
2
3
45
6
Description
1 Process inlet (IN) 2 Gas discharge (OUT)
3 Topping-up operating liquid 4 Cooling water inlet (CWI)
5 Cooling water outlet (CWO) 6 Heat exchange (HE)
Total recirculation liquid system recovers all of the operating liquid which is cooled by a heat ex-
changer.
The recommended maximum pressure drop across the total recirculation system heat exchanger is
150 mbar on the machine side.
This arrangement provides for total recirculation of the operating liquid. A heat exchanger is added
to remove the heat of compression, friction and condensation from the operating liquid before it is
reintroduced back into the machine. For prolonged operation at suction pressure above 300 hPa abs
(300 mbar abs), a circulating pump is recommended. At suction pressure above 400 hPa abs (400
mbar abs) or when suction pressure varies during cycling operations, a circulating pump is manda-
tory.
5.3 Operating Liquid Settings
The condition of both the operating liquid and the conveyed media depend on the physical condi-
tions pressure and temperature.
At a very low pressures and sufficiently high temperatures the operating liquid can locally transfer
into the vapor phase, creating bubbles within the operating liquid. This process is called “cavitation”
and may deteriorate the machine and its performance, see Preventing Cavitation [➔21].
Recommended operating liquid settings:
Fresh water flow rate
(once through operation only)
m3/h See Technical Data [➔30]
Water pressure before flow regulation valve
(once through operation only)
bar 1
Max. allowable supply temperature °C 80
Max. allowable kinematic viscosity mm2/s 20
Consider the motor power for any-
thing other than water - consult
Busch.
Max. allowable particle size mm 0.1*
* For all operating systems make sure that no particles with a diameter larger than 0.1mm will intrude the
machine, neither via the process gas nor via the operating liquid. Use suitable filtration as necessary.

5 | Installation
14 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
The table below lists the recommended maximum levels of soluble compounds for use with ma-
chine in cast iron construction.
Calcium carbonate mg/l (ppm) < 300**
PH value 6.5 … 9.5
Chloride mg/l (ppm) < 700
Sulphates mg/l (ppm) < 200
Nitrites mg/l (ppm) < 500***
Total dissolved solids mg/l (ppm) < 1000
** to prevent excessive built-up of scale
*** provided long period of exposure to stagnant water is not foreseen
NOTE
Stainless steel version.
Please note that machines in all stainless steel material offer higher levels of corrosion resis-
tance and are recommended for operation outside of the above limits, or where the applica-
tion is known to corrode cast iron.
5.4 Fitting the Coupling
WARNING
Unprotected coupling.
Risk of severe injury!
●Make sure that the coupling is protected by a cover or a guard.
In case of a machine supplied without a motor:
●Fit a suitable coupling that matches the machine and motor shaft size.
●Make sure that the coupling is sized to withstand the full motor torque.
●Make sure that the coupling is correctly aligned according to the coupling instructions.
●Install a protective cover or a guard.
Machine type Machine shaft size (mm)
LM 0100-0270 A 28
LM 0530-0800 A 38
LT 0130-0220 A 28
LT 0320-0750 A 38

Installation | 5
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 15 | 40
5.5 Bolt Setting
By design, two of the bolt heads on the non-drive end bearing cap do not sit flush with the outer
surface. This is normal for this machine type and the bolt heads are covered with plastic caps.
CAUTION
Bolt heads with plastic caps.
Risk of damage to the machine!
●Do not adjust these bolts setting otherwise the shaft will move and the machine could seize.

6 | Electrical Connection
16 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
6 Electrical Connection
DANGER
Live wires.
Risk of electrical shock.
●Electrical installation work must only be executed by qualified personnel.
CURRENT PROTECTION OF THE CUSTOMER INSTALLATION:
DANGER
Missing current protection.
Risk of electrical shock.
●Current protection according to EN 60204-1 must be insured by the customer on its installation.
●The electrical installation must comply with the applicable national and international standards.
NOTICE
Electromagnetic compatibility.
●Make sure that the motor of the machine will not be affected by electric or electro- magnetic dis-
turbance from the mains, if necessary seek advice from Busch.
●Make sure that the EMC of the machine is compliant with the requirements of your supply net-
work system, if necessary provide further interference suppression (EMC of the machine, see EU
Declaration of Conformity [➔35] or UK Declaration of Conformity [➔36]).
6.1 Machine delivered without Control Box or Variable
Speed Drive (VSD)
DANGER
Live wires.
Risk of electrical shock.
●Electrical installation work must only be executed by qualified personnel.
NOTE
The operation with variable speed, i.e. with a variable speed drive or a soft starter unit, is al-
lowed as long as the motor is capable and the permitted motor speed range is respected (see
Technical Data [➔30]).
Seek advice from your Busch representative.

Electrical Connection | 6
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 17 | 40
●Make sure that the power supply for the motor is compatible with the data on the nameplate of
the motor.
●If the machine is equipped with a power connector, install a residual current protective device to
protect persons in case of isolation default.
●Busch recommends installing a type B residual protective device suitable for the electrical in-
stallation.
●Provide a lockable disconnect switch or an emergency stop switch on the power line so that the
machine is completely secured in case of an emergency situation.
●Provide a lockable disconnect switch on the power line so that the machine is completely secured
during maintenance tasks.
●Provide an overload protection according to EN 60204-1 for the motor.
●Connect the protective earth conductor.
●Electrically connect the motor.
NOTICE
Incorrect connection.
Risk of damage to the motor!
●The wiring diagrams given below are typical. Check the inside of the terminal box for motor con-
nection instructions/diagrams.
6.2 Machine delivered with a Variable Speed Drive
(Option)
●If the machine is equipped with a power connector, install a residual current protective device to
protect persons in case of isolation default.
●Busch recommends installing a type B residual protective device suitable for the electrical in-
stallation.
●If the variable speed drive is not equipped with a lockable disconnect switch, provide it on the
power line so that the machine is completely secured during maintenance tasks.
●Provide an overload protection according to EN 60204-1.
●Connect the protective earth conductor.
NOTICE
Incorrect connection.
Risk of damage to the variable speed drive!
●The wiring diagrams given below are typical. Check the connection instructions/diagrams.

6 | Electrical Connection
18 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
6.3 Wiring Diagram Three-Phase Motor
NOTICE
Incorrect direction of rotation.
Risk of damage to the machine!
●Operation in the wrong direction of rotation can destroy the machine in a short time! Prior to
start-up, ensure that the machine is operated in the right direction.
NOTICE
Incorrect direction of rotation.
Risk of damage to the vacuum system!
●Operating the vacuum system with the rotation in the wrong direction can result in the operating
liquid flowing back to the vacuum system. Prior to start-up, check for correct direction of rotation.
The intended rotation direction of the motor is defined by the illustration below:
●Watch the fan wheel of the motor and determine the direction of rotation just before the fan
wheel stops.
If the rotation of the motor must be changed:
●Switch any two of the motor phase wires.

Electrical Connection | 6
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en 19 | 40
Delta connection (low voltage): Star connection (high voltage):
Double star connection, multi-voltage motor
with 9 pins (low voltage):
Star connection, multi-voltage motor with 9
pins (high voltage):
Double star connection, multi-voltage motor
with 12 pins (low voltage):
4
4
4
Star connection, multi-voltage motor with 12
pins (high voltage):
4
4
4
Delta connection, multi-voltage motor with 12
pins (middle voltage):
4
4
4

7 | Commissioning
20 | 40 Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
7 Commissioning
CAUTION
During operation the surface of the machine may reach temperatures of more than 70°C.
Risk of burns!
●Avoid contact with the machine during and directly after operation.
NOTICE
The machine is running without operating liquid system.
Will ruin the machine in short time!
●Prior to commissioning, the operating liquid system must be connected and open.
●Make sure that the installation conditions (see Installation Conditions [➔9]) are met.
Before operating the machine:
●Make sure that the operating liquid level is at the machine shaft center.
●Check the operation of all automatic valves before start up
●Switch on the machine.
●Make sure that the maximum permissible number of starts does not exceed 12 starts per hour.
Those starts should be spread within the hour.
After a few seconds of operation:
●Turn on/activate the operating liquid system device.
●Make sure that the operating conditions comply with the Technical Data [➔30].
As soon as the machine is operated under normal operating conditions:
●Measure the motor current and record it as reference for future maintenance and trouble-
shooting work.